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ASTM D2523-00(2006)

(Practice)

Standard Practice for Testing Load-Strain Properties of Roofing Membranes

Standard Practice for Testing Load-Strain Properties of Roofing Membranes

SIGNIFICANCE AND USE
This practice is designed to aid those interested in the engineering properties of roofing membranes.
The data obtained will not permit prediction of the service life of a membrane under field conditions. The data will provide a basis for study of the mechanical properties of the membrane. Note that if strain rates, specimen dimensions, initial clear distance between clamps, or temperatures and moisture contents are varied, the data may not be strictly comparable.
SCOPE
1.1 This practice is a guide for determining the load-strain properties of roofing membranes and their components at various temperatures. Test specimens may be prepared in the laboratory or cut from samples obtained in the field.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Apr-2006
ICS
91.060.20 - Roofs
Technical Committee
D08 - Roofing and Waterproofing
Drafting Committee
D08.20 - Roofing Membrane Systems
Current Stage
Ref Project

Relations

Replaces
ASTM D2523-00 - Standard Practice for Testing Load-Strain Properties of Roofing Membranes
Effective Date
01-May-2006
Replaced By
ASTM D2523-13 - Standard Practice for Testing Load-Strain Properties of Roofing Membranes
Effective Date
15-Jun-2013

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ASTM D2523-00(2006) - Standard Practice for Testing Load-Strain Properties of Roofing MembranesASTM D2523-00(2006) - Standard Practice for Testing Load-Strain Properties of Roofing Membranes
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ASTM D2523-00(2006) - Standard Practice for Testing Load-Strain Properties of Roofing Membranes
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D2523 −00(Reapproved 2006)
Standard Practice for
Testing Load-Strain Properties of Roofing Membranes
This standard is issued under the fixed designation D2523; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope provide a basis for study of the mechanical properties of the
membrane. Note that if strain rates, specimen dimensions,
1.1 This practice is a guide for determining the load-strain
initial clear distance between clamps, or temperatures and
properties of roofing membranes and their components at
moisture contents are varied, the data may not be strictly
various temperatures. Test specimens may be prepared in the
comparable.
laboratory or cut from samples obtained in the field.
5. Sampling
1.2 The values stated in SI units are to be regarded as the
standard. The inch-pound units given in parentheses are for
5.1 Take field membrane sample at least 100 by 250 mm (4
information only.
by 10 in.) in accordance with good roofing practices. In cases
where field-applied aggregate is in place, remove it with a
1.3 This standard does not purport to address all of the
scraper such as a heated putty knife.
safety concerns, if any, associated with its use. It is the
5.1.1 Samplethoseareasofthemembranethatareexpected
responsibility of the user of this standard to establish appro-
to represent the extremes in load/strain characteristics.
priate safety and health practices and determine the applica-
5.1.2 At least one sample is required for each test tempera-
bility of regulatory limitations prior to use.
ture at which it is desired to determine load/strain properties.
2. Referenced Documents
5.2 Prepare laboratory samples at least 100 by 250 mm (4
2.1 ASTM Standards:
by 10 in.) in strict accordance with the roofing specification
D95Test Method for Water in Petroleum Products and
being tested. Observe all cautions specified, such as not
Bituminous Materials by Distillation
overheating the bitumen. Do not oven condition any of the
D412TestMethodsforVulcanizedRubberandThermoplas-
components or the final sample.
tic Elastomers—Tension
5.2.1 Select those areas of the membrane that are expected
E178Practice for Dealing With Outlying Observations
to represent the extremes in load-strain characteristics. Prepare
at least one sample of each type for each proposed test
3. Terminology
temperature. If there is any doubt about these areas, include all
possible variations. The samples must be uniform in cross
3.1 Definitions of Terms Specific to This Standard:
3.1.1 roofing membrane—that part of the roofing system section.
5.2.2 Select materials at random when possible. Compo-
whoseprimaryfunctionistoexcludewater;itdoesnotinclude
field-applied aggregate. nentsshouldbeconditionedat50 65%relativehumidityand
25 6 2.5°C (77 6 4.5°F) for 24 h prior to constructing
4. Significance and Use
samples.
5.2.3 The quantity of material in any layer should be within
4.1 This practice is designed to aid those interested in the
610%, and the entire sample should be within 65% of the
engineering properties of roofing membranes.
quantities specified.
4.2 The data obtained will not permit prediction of the
servicelifeofamembraneunderfieldconditions.Thedatawill
6. Test Specimens
6.1 Conditionthesamplesatroomtemperatureat50 65%
relative humidity for a minimum of 16 h for non-solvent-
ThispracticeisunderthejurisdictionofASTMCommitteeD08onRoofingand
Waterproofing and is the direct responsibility of Subcommittee D08.20 on Roofing containing membranes, and until constant mass has been
Membrane Systems.
reached for solvent-containing membranes.
Current edition approved May 1, 2006. Published May 2006. Originally
6.2 Die-cut three tension test specimens from each sample.
approved in 1966. Last previous edition approved in 2000 as D2523–00. DOI:
10.1520/D2523-00R06.
Theshapeofthespecimensformembraneswithlessthan50%
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ultimate elongation is shown in Fig. 1. Where the membrane
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
hasanultimateelongationgreaterthan50%,useDieCofTest
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Methods D412.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2523−00 (
...

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5.1 Excess moisture trapped in roofing or waterproofing systems can adversely affect performance and lead to premature failure of roofing or waterproofing systems and its components. It also reduces thermal resistance, resulting in reduced energy efficiency and inflated energy costs. Impedance scans can be effective in identifying concealed and entrapped moisture within roofing or waterproofing systems.  
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1.4.3.1 This practice is not appropriate for use with aluminium foil faced modified bitumen membranes, as the electrical conductivity of the aluminium foil surface can give false positive readings.  
1.4.4 While their overburden remains in place, this practice is not appropriate for use with inverted roof membrane assemblies (IRMAs) or protected roof assemblies (PRMAs), which contain above the deck waterproof membrane and overburden that may include insulation, drainage components, pavers, aggregate, ballast, vegetation, or combinations thereof, because the impedance scanner will not differentiate between above and below the membrane moisture.  
1.4.5 S...

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